There are more than 80 different types of welding and associated processes. Some of the most common types of welding are arc welding, which includes ‘stick’ or shielded metal arc welding, gas-shielded methods of metal inert gas (MIG) and tungsten inert gas (TIG) and plasma arc welding (PAW). Other processes such as air arc gouging are also common to the industry.
In 2017, welding fumes were reclassified by the International Agency for Research on Cancer (IARC Monogram -118) from a Group 2B (possibly carcinogenic to humans) to Group 1 (carcinogenic to humans). Also reclassified to a group 1 was ultraviolet radiation from welding processes as risk of skin and eye cancer.
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